Hoeace molby



(No Model.)

H. MOLBY. Tenoning Machine.

No.236,060. V Patented Dec.'28,1880.

MPETERS, Punrn-UIHQGRAPMER, WASHINGTON. 0. C,

' V UNITED TATES HORACE MOLBY, OF DAVISBURG, MI@HIGAN.

TENONlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 236,060, dated December28, 1880.

Application filed May 27, 1880.

To all whom it may concern:

Be it known that I, HORACE MOLBY, of Davisburg, Oakland county,Michigan, have invented an Improvement in Tenoning-Machines, of whichthe following is a specification.

The nature of this invention relates to certain new and usefulimprovements in the construction and arrangement of a sawing-machine theprimary use of which is the cutting of tenons; and the inventionoonsists'in the peculiar construction and arrangement of the variousparts, all as more fully hereinafter set forth.

In the accompanying drawings, Figure 1 is a perspective view of myimproved machine. Fig. 2 is a vertical cross'section on line a; x.

In the drawings which form a part of this specification, A represents asuitable frame, in one side of which is arranged thevertically-adjustable table or frame B, said adjustment being obtainedthrough the means of the lever (l, as shown.

D D represent ways, upon which the sawcarriage E travels, afriction-roller, a, at the rear side of the carriage resting upon thetop of the way D, while a hook-guide, 1), upon the front of suchcarriage travels in a channel, 0, in the way D, the whole supporting andguiding the carriage in its horizontal position.

F is a shaft journaled in a proper bearing, e, at one end of the frame,the inner end of said shaft being rigidly secured to the sawcarriage.The main or driving shaft Gr is 5 journaled in a proper box upon theopposite is properly journaled upon the carriage and carries the saw K.

L represents a rod provided with an arm, It, upon one end, said armbeing pivotally connected to the outer end of the shaft F. The

(No model.)

opposite end of this rod L terminates in a rack-bar, 0, which engageswith a gear-wheel, M, properly secured upon a shaft, 19, journaled inthe frame A, said shaft being operated by the hand-wheel N.

To cut the tenon on a stick of timber I first mark off the size of tenondesired, and place the end of the timber upon the table B, which Iadjust by means of the lever, so that the saw will cut the depth desiredto form the shoulder of the tenon, the timber being secured upon thetable in any convenient manner, its opposite end being supported upon aproper horse. I then cause the saw, through the connections hereinbeforedescribed, to travel toward the opposite end of the frame, the sawpassing under the timber and cutting the shoulder of the tenon upon thatside, the operation being repeated to cut the opposite shoulder. Afterthis is done the saw-carriage is advanced to the extreme left of theframe, where the friction-wheel a and hook-guide b are coincident withrecesses in their respective ways. By then partially rotating the shaftF the carriage and saw are compelled to assume the position shown inFig. 2, the hookguide 8 engaging with a channel in the bottom of the wayD. By repeating the operations described for cutting the shoulder of thetenon the remaining or end cut may be made, thus forming a tenon uponthe end of the timber, which will be perfectly true in every partioular.

WVhat I claim as my invention is 1. A saw-carriage capable of beingreciprocated and adapted to be rotated on its longitudinal axis bymechanism substantially as described, whereby the saw may be adjusted torun either in a vertical or horizontal plane, substantially asdescribed, and for the purpose set forth.

2. A reciprocating saw-carriage adapted to be rotated on itslongitudinal axis by mechanism substantially as specified, incombination with a vertically-adjustable table, B, for determining thedepth of out, substantially as described.

3. A circular saw mounted in bearings adapted to be adjusted to runeither in a vertical or horizontal plane by mechanism substantially asdescribed, in combination with a vertically-adjustable table,substantially as set shaft; F, of the recessed ways D D, rod L,havforth. ing' racks 0, cog-gear M, and hand-wheel N, 10

4. A circular saw capable of reciprocation substantially as described,and for the purand adjustment Vertically and horizontally, in pose setforth.

5 combination with the shaft F, rod L, gear M, HORACE MOLBY.

and hand-wheel N, substantially as set; forth. \Vitnesses:

5. The combination, with the smv-czirriage H. S. SPRAGUE, E, having thefriction-roll a, hooks b s, and EDWARD A. LANE.

